Thank you so much for your indepth reply mate!
I think that this is a social network so you have to be helpful and engage people. I have met some really friendly people on steem.chat who have been willing to help me. Now I am doing the same and helping others - I kind of see it as how this platform works :)
Writing great comments really helps to let others know you opinions and I believe they will be more likely to visit your blog if you write good comments that are engaging.
I will hope to have the next instalment out in a day or two where I will focus on how the reputation score works